Remote ECU Security Testing Board for Hardware Attack Simulation
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Solution Overview
Problem
Existing security testing methods for automotive ECUs face scalability issues due to the need for physical hardware connections and lack of flexibility in simulating various attack vectors, especially in cyber-physical systems where hardware and software vulnerabilities coexist.
Innovation Solution
A testing board equipped with a microcontroller, network interfaces, GPIO breakout, power interface, and debug interfaces, enabling fine-grained control over ECUs to simulate attack vectors and monitor interactions, allowing remote access and manipulation of hardware components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical hardware connections are used for security testing, then direct access to ECU components is achieved, but scalability and remote accessibility are limited
Solution Approach 1:
The patent introduces a testing board as an intermediary device between the remote user and the ECU. The board includes a controller that receives test instructions remotely via network interface, processes them locally, and executes them on the ECU through direct hardware connections. This mediator enables remote users to perform security tests without physically connecting to the ECU, resolving the contradiction between direct hardware access and remote accessibility.
2Reliability
If physical hardware reconfiguration is performed to simulate attack vectors, then accurate security testing is achieved, but device complexity and reconfiguration effort increase
Solution Approach 1:
The testing board implements dynamic reconfiguration capabilities where the controller can programmatically change the configuration of various interfaces (CAN, LIN, Ethernet, power interfaces) based on the test scenario requirements. Instead of permanent physical reconfiguration, the system dynamically adjusts its behavior through software control, allowing different attack vectors to be simulated by changing control parameters rather than physically rewiring the hardware.
Solution Approach 2:
The patent utilizes parameter changes to simulate different attack conditions. The controller can modify electrical parameters such as voltage levels, signal frequencies, and data patterns to represent various attack scenarios. By changing these parameters through software rather than physical reconfiguration, the system maintains testing accuracy while reducing hardware complexity and reconfiguration effort.
3Reliability
If multiple ECUs are connected for subsystem testing, then comprehensive security evaluation is achieved, but hardware availability and setup complexity increase
Solution Approach 1:
The testing board is designed with universal interfaces that can connect to multiple different ECU types and automotive network standards (CAN, LIN, Ethernet). A single board can test individual ECUs or multiple ECUs configured in different subsystem arrangements. The controller can programmatically configure the board to work with various ECU combinations, eliminating the need for separate dedicated hardware setups for each testing scenario and reducing overall hardware requirements.
Data Source
AI summary
An apparatus utilized for security testing one or more electronic control units (ECUs) includes a memory unit configured to store one or more instructions, a controller configured to execute one or more instructions, a control network interface in communication with the controller and that is configured to communicate instructions received from one or more control networks, a breakout interface configured to send one or more instructions to the one or more ECUs, a automotive network interface configured to communicate with one or more automotive networks, a general purpose input-output (GPIO) breakout interface including a plurality of GPIO pins configured to send signals to control functionality of the apparatus, a power interface configured to supply variable power to the one or more ECUS, and one or more debug interfaces configured to allow communication between a debugger and the one or more ECUs as associated with security testing.